References

eXergy machine as an efficient reheater for heating water in new builds
The apartments in the new Artem district in Oberursel are supplied with heat by Conergia Energieeffizienz GmbH on a contracting basis. Air-to-water heat pumps supply the heating energy and the higher temperature for hot water is generated by eXergy machines.

Sportpark Ost, Regensburg: Raising the temperature with the eXergy machine
The Sportpark Ost in Regensburg is designed to be climate-friendly. The building, which was constructed by Stadtwerk Regensburg Bäder und Arenen GmbH, uses recycled concrete and the heating system is completely CO2-neutral.

Hotel Drei Quellen Therme optimizes use of solar heating with the eXergy machine
Since summer 2025, the „Hotel Drei Quellen Therme“ has primarily been using solar energy: 170 PVT modules* on the hotel roof supply electricity and heat, making the use of fossil fuels less necessary.

Waste heat recovery with the eXergy machine: hotel saves thousands of liters of heating oil every year
Hotel Landgasthof Kemmeriboden Bad has significantly improved its energy balance...

Climate-neutral living for senior citizens and paying virtually no more heating costs
Family project: Renovation of old building heating system with heat pump and eXergy machine

District heating beyond the performance limit
The eXergy machine enables district heating connection of another residential complex...

Refurbishment raises energy class from E to A+
Gemeinnütziges Siedlungs-Werk GmbH (GSW for short) renovated and modernized a 1960s residential building in Worms to new-build standards.

Heat pumps & eXergy machines replace natural gas local heating network
Instead of replacing the natural gas boilers in the local heating network with new ones, the company switched to heat pump heating systems.

Comfort heating in an apartment building
Heat pump, eXergy machine and home stations provide comfortable heat and hygienic hot water at low operating costs.

Meat processing company halves its natural gas consumption
Thanks to new heating technology and the use of waste heat with the eXergy machine, August Meschede GmbH was able to halve its gas consumption.

Heating a bungalow with a heat pump and eXergy machine - CO2-free and energy-efficient
There are many reasons to renovate a heating system: the age of the system, energy consumption, sustainability...

Tested: How well does heat pump heating work in a half-timbered house?
Can a listed half-timbered house from the 17th century be heated with a heat pump? How great is the savings potential?

Renovation of old buildings: from CO2 guzzler to energy-plus house
Investment in an apartment building from the seventies pays for itself in less than eight years with the right technology: Solar system and two-stage heat pump system replace oil burner...

Heating renovation in old buildings: „Only economical with the eXergy machine.“
Even before the heated discussion about the new heating law broke out, the company Enloc Construct in Dresden was already involved in the renovation of heating systems

Exergy system minimizes energy consumption in new passive house buildings
Morscher Bau- und Projektmanagement GmbH opted for an eXergy machine in 4 passive houses. This allows solar systems and geothermal heat pumps to work particularly effectively...

From oil heating to an ecological energy system
Even before the rise in heating oil prices, the Rothfelder family from Warmisried had decided to replace the oil heating system in their home, built in 1993, with a more climate-friendly solution...

Raise the temperature level of an air/water heat pump to 60°C
Energy-efficient and climate-friendly - this is what a community of owners wanted for the heat supply of their new KFW 55 house. The hot water supply initially raised questions...

More solar heat and PV electricity - using hybrid modules more efficiently
The Hotel Lisetta uses around 40 percent less natural gas to heat water and the outdoor pool in spring and fall - thanks to the high solar yield with the eXergy machine ...

Warm homes. With waste heat from the bakery
In the St. Gallen „Boarding House“, the waste heat from the bakery on the first floor is sufficient to supply the building with hot water in summer and during transitional periods with the help of the eXm ...

Lower energy consumption - less noise emissions
The Cologne-based hotel and catering company Früh uses the waste heat from its refrigeration systems as a heat source. The result: lower energy costs and reduced noise pollution ...

Homemade: heat for hot water and heating
Bäcker Hansen GmbH & Co. KG in Wrixum uses the waste heat from its ovens and refrigeration system as a heat source. As the waste heat is generated at low temperatures, the eXergy machine acts as a heat booster ...

Reduce return temperature - make better use of district heating
Stadtwerke Augsburg Energie GmbH is testing the eXm in a block of flats: a high flow temperature and a low return temperature ensure greater efficiency. This benefits the houses and the district heating network ...
